Valve.



H. 0. HlLDEBRAND.

VALVE. APPLICATION man MAY 4. I916.

Patented June 12, 1917.

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2 SHEETS-SHEET '1.

INVENTOR WITNESS H. D. HILDEBRAND.

VAL'VE. APPLICATION FILED MAY 4. I916.

Patented J une 12, 1917.

2 SHEETS-SHEET 2- FHE.%.

FNH.E.

INVENTOH WITNESS HARRY D. HILDEBRAND, 0F PITTSBURGH,

PENNSYLVANIA.

VALVE.

Specification of Letters Patent.

Patented June 12, 191" Application filed May 4, 1916. Serial No. 95,333.

11 '0 all 'ur/wm it may concern:

Be it known that I. IIARRY D. HILDE- mum), residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, a citizen of the United States, have invented or discovered certain new and useful Improvements in Valves, of which improvements the following is a specification.

The invention described herein relates to the class or type of valves for pumps, etc., described and shown in an application for Letters Patent filed May 4th, 1916, Serial No. 95,332, and consisting generally stated in a construction having the valves formed of thin resilient metal. The invention is hereinafter more fully described and claimed.

In the accompanying drawing, forming a part of this specification, Figure 1 is a top plan view of a valve mechanism embodying the improvement claimed herein; Fig. 2 is a similar view showing an alternative construction; Fig. 3 is a sectional view on a plane indicated by the line IIIIII, Fig. 2; Figs. 4 and 5 are plan and sectional views showing a modification of the improved valve, and Fig. 6 is the top plan view illustrating a further modification of the improved valve. In the construction shown in Figs. 1. 2 and 6, thin strips of metal 1 and 5, preferably resilient, are arranged in grooves 2 to close ports 3 formed in the side walls of plateaus or raised bodies of metal 11. These plateaus are arranged in such relation to each other, and in such proximity. the one to the other, that a portion or portions of one valve will, when moved to open position, bear upon a corresponding portion of an adjacent valve. These plateaus are not necessarily triangular in contour. their peripheral contour being dependent upon whether the grooves or valleys 2. intermediate the plateaus are arauged radially or otherwise.

The wings should be so supported that their lower edge will not rub on the bottom of the grooves 2 in their opening and closing movements. This end can be readily attained by forming peripheral grooves in the heads of the pins 6 as shown in Fig. 3, said grooves having widths approximately equal to the widths of the wings.

In order that the valves may be maintained in vertical position and in close proximity to the walls through which the ports 3 are formed. pins 6 are arranged intermediate adjacent valves, and at points in tween the pins and their seats, but should have entire freedom of movement longitudinally, as the middle portions are bent to uncover the ports.

In lieu of supporting the wings in operative relation to their seats, 1'. 6., the side walls of the plateaus by means of pins adjacent the end portions of the valves, such operative positions may be insured by pins 6 intermediate the middle portions of the springs as shown in Fig. 2. In this eonstruction, the middle portions of the valves are so supported by pins 6 that the ends may not drag on the bottoms of the grooves. In the constructions shown in Fi 2, the ends of the wings move away rom the seats in their opening movements and the valves assume a convex position relative to their seats, while in the form shown in the Fig. 1, the valves present concave faces to the seats when in open position.

Any material longitudinal movement of the wings is prevented by the raised portions at the inner ends of the grooves and by a light ring 13 surrounding the portion of the block in which the grooves 2 are formed. This longitudinal movement may also be prevented by bending the ends of the wings as shown in Fig. 6, butcare shoul be taken that these turned in portions 1) will not operate to prevent the flexure of that portion of the wings intermediate of the pins 6.

In the construction shown in Figs. 4: and 5, the ports 3 are formed vertically and the valves are formed by thin metal strips 4*, adapted to bear when in closed position on the portions of the upper faceof the valve block adjacent to the ports. The end portions of the wings are held adjacent to the faces of the block by pins 14, passing through lugs 15 on the block. In order to prevent the valves or wings from such longitudinal movement as will uncover the ports, the ends of the wings are bent up over the rods as shown in Fig. 5.

I claim herein as my invention:

1. A valve mechanism for pumps, etc., having in combination two oppositely disposed valve seats having ports therethrough, valves consisting of thin metal strips supported in operative relation to said seats, said valves being adapted to limit the opening movements of one another.

2. A valve mechanism for pumps, ete., having in combination two oppositely disposed valve seats having ports therethrough, valves consisting of thin metal strips,v and means for so supporting the valves in operative relation to said seats as to permit of their being bent to open the ports and to move longitudii'ially \vhen bending.

3. A valve mechanism for pumps, etc., having in combination two oppositely disposed valve seats having ports therethrough and valves consisting of thin metal strips supported in operative relation to said seats, the seats and valves being arranged in such relation that each valve will serve as a stop to limit 'the opening movement of the other valve.

4. A valve mechanism for pumps, etc., having in combination two valve seats having ports therethrough, two independent valves consisting of thin pieces of metal, said valves being simultaneously movable to and from their seats and adapted to abut one against the other in their opening movements.

5. A valve mechanism for pumps, etc., having in combination a valveseat having a port therethrough. a valve consisting of a thin resilient metal strip, pins arranged transverse of the strip adapted to maintain it in operative relation to the port and permit the ends of the strip to move longitudinally in the opening and closing movements of the valve.

6. A valve mechanism for pumps, eto, having in combination a valve seat having a port therethrough. a valve consisting of a thin resilient metal strip. pins arranged transverse of lhe'strip i'ormaintaining it in operative relation to the port, the ends of the strip being bent to engage the pins and prevent material longitudinalmovement of the strip.

In testimony whereof, I have hereunto set my hand.

HARRY D. HILDEBRAND.

\Vitness G. G. TRILL. 

